NPI registry status
Active
2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1427048693 MD
Verify on CMS → Yujen Wang, MD
Retina Specialist (Ophthalmology) Physician in Medford, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 917 in Retina Specialist (Ophthalmology) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 417 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
Industry payments
$896.64
16 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Yujen Wang, MD reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 1,701 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 2K
- Part D claims, 2023
- 78%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Yujen Wang, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
100 ≥ 92nd percentile 92% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Yujen Wang, MD sits
This provider among retina specialist (ophthalmology) physician peers
Across the 548 retina specialist (ophthalmology) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Yujen Wang, MD writes more Part D claims than 95% of them and scores higher on MIPS quality than 55% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one retina specialist (ophthalmology) physician peer from a representative sample of 60; the gold marker is Yujen Wang, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Yujen Wang, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Yujen Wang, MD?
High performer (top quartile)Primary specialty
Retina Specialist (Ophthalmology) Physician
Medicare Part D claims
1,701 205% vs specialty avg
MIPS final score
100/100 16.5 pts vs avg
Specialty distribution in Oregon
How Retina Specialist (Ophthalmology) Physician compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Yujen Wang, MD's 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average
- MIPS Final Score
- 100/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Retina Specialist (Ophthalmology) Physician) - 100/100 vs national avg 83.5
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Yujen Wang, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 1518 E BARNETT RD, Medford, OR, 97504, with a listed phone of (541) 770-2020. NPI 1427048693 was issued on 10/27/2005.
Medicare Part D records for calendar year 2023 show 1,701 prescription claims written by this provider, covering 417 Medicare beneficiaries and totaling roughly $124K in drug spend, split 22% brand-name and 78% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the 83.5 average among clinicians with a measured score.
Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 917 enrolled providers across 48 states and an average of 558 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1427048693 |
|---|---|
| Specialty | Retina Specialist (Ophthalmology) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/27/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Measured-score avg: 83.5
100
Quality
100
Promoting Interoperability
Reporting: Individual
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Yujen Wang, MD. Source: openpaymentsdata.cms.gov.
Total received
$897
Largest payer
Regeneron Healthcare Solutions, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Yujen Wang, MD - brand share 22.0%
Retina Specialist (Ophthalmology) Physician average
22% brand-name claims vs 78% generic, on 1,701 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,701
Total Claims
$124K
Total Drug Cost
417
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,038
- Total Day Supply
- 87,570
- Brand vs Generic
- 22% brand / 78% generic
- Brand Drug Cost
- $82K
- Generic Drug Cost
- $42K
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 1.26
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 16, 65-74: 166, 75-84: 163, 85+: 72
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Yujen Wang, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ketorolac Trometha…
Ketorolac Tromethamine
420 claims
- Dorzolamide Hcl
Dorzolamide Hcl
336 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
208 claims
- Prednisolone Acetate 144
Prednisolone Acetate
144 claims
- Latanoprost 113
Latanoprost
113 claims
- Timolol Maleate 110
Timolol Maleate
110 claims
- Brimonidine Tartrate 76
Brimonidine Tartrate
76 claims
- Prolensa 61
Prolensa
61 claims
| Drug | Claims |
|---|---|
| Ketorolac Tromethamine | 420 |
| Dorzolamide Hcl | 336 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 208 |
| Prednisolone Acetate | 144 |
| Latanoprost | 113 |
| Timolol Maleate | 110 |
| Brimonidine Tartrate | 76 |
| Prolensa Bromfenac Sodium | 61 |
| Bromfenac Sodium | 39 |
| Diclofenac Sodium | 36 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Retina Specialist (Ophthalmology) Physician in OR →
All providers in Oregon →
Compare specialties →
Retina Specialist (Ophthalmology) Physician Overview
How Yujen Wang, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.
917
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider
Yujen Wang, MD's 1,701 claims are above the specialty average of 558.
Nearby Retina Specialist (Ophthalmology) Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Wang.
Dr. Justin Etzel
MD
Eugene, OR
Dr. Timothy Gard
MD
Hillsboro, OR
Dr. Peter Karth
MD
North Bend, OR
Dr. Andreas Lauer
MD
Portland, OR
Dr. Mi-Kyoung Song
M.D.
Salem, OR
Compare Retina Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Retina Specialist (Ophthalmology) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Yujen Wang, MD's specialty? ▼
Yujen Wang, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in Medford, Oregon. Credentials: MD.
How much does Yujen Wang, MD prescribe under Medicare Part D? ▼
In 2023, Yujen Wang, MD wrote 1,701 Medicare Part D claims totaling $124K in drug costs for 417 beneficiaries.
What is Yujen Wang, MD's Medicare quality score? ▼
Yujen Wang, MD has a CMS MIPS Final Score of 100/100 (Quality: 100). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Yujen Wang, MD located? ▼
Yujen Wang, MD is located at 1518 E BARNETT RD, Medford, OR, 97504. Phone: (541) 770-2020.
What is Yujen Wang, MD's NPI number? ▼
Yujen Wang, MD's National Provider Identifier (NPI) is 1427048693, issued on 10/27/2005.
Does Yujen Wang, MD prescribe more brand-name or generic drugs? ▼
Yujen Wang, MD's prescribing is 22% brand-name and 78% generic drugs by claim count, with $82K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US? ▼
There are 917 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does Yujen Wang, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Yujen Wang, MD's most frequently prescribed drugs include Ketorolac Tromethamine, Dorzolamide Hcl, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Yujen Wang, MD accept Medicare? ▼
Yujen Wang, MD appears in CMS Medicare data with 1,701 Part D claims and 417 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yujen Wang, MD's credentials? ▼
Yujen Wang, MD's NPI is 1427048693 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.